best beginner mtg commander deck Magic: The Gathering Starter Bundle – Includes All 5 Decks : Toys & Games These Are The Best Commander

In addition, if Harmonize is cast this way, the player may tap an untapped creature they control as an additional cost to cast that spell

For the Science

Beast Frustrated Designer Beast here contains both the Ruby and Sapphire colors, which most likely means that he can only be included decks that contain both of these colors

(And although I didn't do it here, it's possible to deal exponentially infinite damage in a single turn: include Wild Growths and a Twiddle so that each iteration of the Timetwister-Regrowth loop nets positive mana, and include Berserk in the loop to exponentially double a creature's power each time

It can kill someone in four hits, assuming they haven't gained or lost life, or kill in five hits in Commander if it's your leader